My problem: After installing i got persistent freezing after 1-5 minutes of work, cure only reboot. I decreased swap index and removed swap partition from HDD, after i noticed some improvement. But system still had freezing. After long time researching i found solution - put "nomodeset" parameter in grub. System working fine ... but. I now cant connect projector now. Im tried different solutions from internet but they won't work. Then i removed "nomodeset" and projector began work! But problem has return - my laptop freeze again... I have two option now: work without projector or use projector for single freezed picture.

yes, but as i said, if i have no added parameter then my laptop freezing forever...

That was when the intel video driver was being used but now you have removed that driver, so your system should switch to using the modesetting video driver. You now want to check if the freezing occurs while using the modesetting driver. So you need to remove the nomodeset parameter from grub, or your system will switch to using the fbdev driver.

That was when the intel video driver was being used but now you have removed that driver, so your system should switch to using the modesetting video driver. You now want to check if the freezing occurs while using the modesetting driver. So you need to remove the nomodeset parameter from grub, or your system will switch to using the fbdev driver.

That line has double quotation marks on the end. I assume you mistakenly added the second quotation marks while adding the line to your last post? Otherwise, you would get a Syntax Error message when you tried to update grub. So you need to remove the word nomodeset and use the sudo update-grub command. Then reboot and check if the freezing occurs.

After rebooting, to verify that the modesetting driver is loaded, use this command and post the output:

I have already asked you twice to remove nomodeset from the grub file but this kernel command line from system startup shows that you still have not removed it:
...
As a result, these are some of the lines that show the fbdev driver is still loading:
I think you’re being confused because the modesetting driver has a similar name with the nomodeset kernel parameter.

I already said, i cant remove parameter, because without parameter my laptop freezing every time.
If i confused, what exactly string should i use?

I didn’t ask you to use the sudo apt remove xserver-xorg-video-intel command again. You already did that, but since that time, you have not posted any info to verify that your system is using the modesetting driver, so that it can be tested to see if it works better than the intel driver in preventing freezing.

The video shows that this time the nomodeset parameter was removed from the kernel command line at startup. The desktop freezing did not occur immediately, so there was plenty of time to use the cat /var/log/Xorg.0.log |egrep -i "modeset|fbdev" command and copy it’s output.

There appears to be a communication problem here, so I’m finished with my help in this topic. Perhaps someone else may attempt to help.